Stacking chair



FIG. 1 is a front perspective view of the stacking chair showing my new design;

FIG. 2 is a side elevational view thereof, the opposite side being identical in appearance;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a top view thereof; and

FIG. 6 is a bottom view thereof. 

The ornamental design of a stacking chair, as shown and described. 